The 2014 Wireless Festival kicked off on Friday afternoon at London’s Finsbury Park. The first day included performances from headliner Kanye West, Pharrell Williams, Tinie Tempah, and Iggy Azalea. Running through songs off her debut album The New Classic, Azalea took advantage of the moment in front of the U.K. crowd to bring out a special surprise. Her new BFF Rita Ora hopped on stage, as the two performed their collaboration “Black Widow” for the first-time live.

Earlier in the week, Iggy’s hit-song “Fancy” made Billboard history as the longest leading No. 1 record by a female artist on the Hot 100 charts. Six straight weeks at No. 1, the Charli XCX-featured song surpasses Lil’ Kim’s five-week reign with her appearance on “Lady Marmalade” back in 2001.